MAINTENANCE OF HIGH-LEVELS OF ALLELIC VARIATION IN SPITE OF A SEVERE BOTTLENECK IN POPULATION-SIZE - THE BROWN BEAR (URSUS-ARCTOS) IN THE WESTERN CARPATHIANS

Authors
HARTL GB HELL P
Citation
Gb. Hartl et P. Hell, MAINTENANCE OF HIGH-LEVELS OF ALLELIC VARIATION IN SPITE OF A SEVERE BOTTLENECK IN POPULATION-SIZE - THE BROWN BEAR (URSUS-ARCTOS) IN THE WESTERN CARPATHIANS, Biodiversity and conservation, 3(6), 1994, pp. 546-554
Citations number
NO
Categorie Soggetti
Ecology,"Environmental Sciences
Journal title
Biodiversity and conservation → ACNP
ISSN journal
09603115
Volume
3
Issue
6
Year of publication
1994
Pages
546 - 554
Database
ISI
SICI code
0960-3115(1994)3:6<546:MOHOAV>2.0.ZU;2-R
Abstract
Genetic variation in an isolated brown bear population of the Western Carpathians was studied by electrophoretic analysis of 51 presumptive allozyme loci. In spite of a severe population bottle-neck at the begi nning of the 1930s (40 survivors), average heterozygosity (H = 5.3%) w as within the range commonly found in mammals and the mean number of a lleles per polymorphic locus (A(p) = 3, over five polymorphic loci) wa s very high. Possible reasons for the maintenance of high allelic vari ation are discussed.